878980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{619}}^1$

素因数の和:699

約数の個数: 24

約数和(自身を含む): 1874880

約数和(自身を除く): 995900

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 619, 710, 1238, 1420, 2476, 3095, 6190, 12380, 43949, 87898, 175796, 219745, 439490, 878980]

約数ペア:

[(1, 878980), (2, 439490), (4, 219745), (5, 175796), (10, 87898), (20, 43949), (71, 12380), (142, 6190), (284, 3095), (355, 2476), (619, 1420), (710, 1238)]